5623969 has 4 divisors (see below), whose sum is σ = 6056596. Its totient is φ = 5191344.

The previous prime is 5623967. The next prime is 5623979. The reversal of 5623969 is 9693265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2689600 + 2934369 = 1640^2 + 1713^2 .

It is a cyclic number.

It is not a de Polignac number, because 5623969 - 2¹ = 5623967 is a prime.

It is a super-2 number, since 2×5623969² = 63258054625922, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5623967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216294 + ... + 216319.

It is an arithmetic number, because the mean of its divisors is an integer number (1514149).

Almost surely, 2^5623969 is an apocalyptic number.

It is an amenable number.

5623969 is a deficient number, since it is larger than the sum of its proper divisors (432627).

5623969 is a wasteful number, since it uses less digits than its factorization.

5623969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432626.

The product of its digits is 87480, while the sum is 40.

The square root of 5623969 is about 2371.4908812812. The cubic root of 5623969 is about 177.8337989102.

It can be divided in two parts, 56 and 23969, that added together give a square (24025 = 155²).

The spelling of 5623969 in words is "five million, six hundred twenty-three thousand, nine hundred sixty-nine".